tegra: common: move to GPLv2

- change all dt file licenses to Nvidia, Nvidia Copyright, GPLv2 License
- GPLv2 License:
  https://wiki.nvidia.com/nvwiki/index.php/SW_IP_Audit_Team/Licenses/GPLv2-only

ESLC-5105

Change-Id: I069e525ebb521b986156495ec1c791f5a97a8b39
Signed-off-by: Ronit Halder <rhalder@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/device/hardware/nvidia/platform/tegra/common/+/2383708
Reviewed-by: automaticguardword <automaticguardword@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Vipin Kumar <vipink@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

overlay/jetson-adafruit-sph0645lm4h.dtsi

@@ -1,10 +1,22 @@
-// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2019-2020, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
 /*
  * Jetson Device-tree overlay for Adafruit I2S MEMS Microphone Breakout
  * (SPH0645LM4H).
- *
- * Copyright (c) 2019 NVIDIA CORPORATION. All rights reserved.
- *
  */
 
 #include <dt-bindings/pinctrl/pinctrl-tegra.h>

overlay/jetson-fe-pi-audio-z-v2.dts

@@ -1,9 +1,21 @@
-// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2019-2020, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
 /*
  * Jetson Device-tree overlay for FE-PI Audio Z V2.
- *
- * Copyright (c) 2019 NVIDIA CORPORATION. All rights reserved.
- *
  */
 
 #include <dt-bindings/pinctrl/pinctrl-tegra.h>

overlay/jetson-mcp251x.dtsi

@@ -1,9 +1,21 @@
-// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2020, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
 /*
  * Jetson Device-tree overlay for MCP251x CAN Controller.
- *
- * Copyright (c) 2020 NVIDIA CORPORATION. All rights reserved.
- *
  */
 
 #include <dt-bindings/pinctrl/pinctrl-tegra.h>

overlay/jetson-respeaker-4-mic-array.dtsi

@@ -1,9 +1,21 @@
-// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2020, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
 /*
  * Jetson Device-tree overlay for ReSpeaker 4 Mic Array.
- *
- * Copyright (c) 2020 NVIDIA CORPORATION. All rights reserved.
- *
  */
 
 #include <dt-bindings/pinctrl/pinctrl-tegra.h>